Gas-engine-exhaust-valve water connection.



W. P. PLINT.

GAS ENGINE EXHAUST VALVE WATER CONNECTION. A1 1=L10AT10N FILED 11111.14,1910.

Patented 0011.4, 1910.

WITNESSES:

lll lll /l/ @NEW EEE HIS ATTORNEY IN FACT.

UNITED STATES PATENT OFFICE.

WILLIAM P. FLINT, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE WESTING-HOUSE MACHINE COMPANY, A CORPORATION OF PENNSYLVANIA.

GAS-ENGINE-EXHAUST-VALVE WATER CONNECTION.

To all whom it may concern:

Be it known that I, IVILLIAM P. FLINT, a

` citizen of the United States, and a resident of Pittsburg, in thecounty of Allegheny and State of Pennsylvania, have made a new anduseful Invention in Gas-Engine- ExhaustsValve Water Connections, ofwhich the following is a specification.

This invention relates to a. connection for conduits but particularly toa water con nection for moving parts of a gas engine. For example; it isoften good practice to water cool the exhaust valve of an explosivemotor.- This is usually accomplished by introducing a flow of waterthrough an opening in the stem of the valve from which it passes upthrough a conduit to the valve head and back through a pipe within theconduit to an outlet in the stem.

Some means is necessary for connecting an inlet supply pipe and anoutlet pipe to the ste-m of the exhaust valve, and heretofore it hasgenerally been the plan to screw an inlet connection into one threadedopening in the stem and to screw an outlet connection into anothersimilar opening. In view of the fact that these connections were usuallyin the form of nipples and that they had to be unscrewed each time thevalve had to be removed to be ground or for any other cause, theconnection soon began to leak resulting in inconvenience and annoyance.

I have devised a connection which may readily be applied and removedfrom the stem and which consists of a few parts and which will not leak.

In the drawings, Figure 1 is a vertical longitudinal sectional viewthrough a portion of an explosion motor and an exhaust valve to which myinvention is applied. Fig. 2 is a face view of a connection constructedin accordance with my invention. Fig. 3 is a sectional view on the line3 3 of'Fig. 2 and Fig. 1 is a sectional view through a slight-lymodified form.

Referring now to the drawings by numerals of reference 1 designates agas engine casing having the usual exhaust port 2 and in which works areciprocatory exhaust valve 3 provided with a longitudinally hollow stem4t. The exhaust valve is illustrated as provided with the usualaccessories which need not be mentioned here.

At a suitable place upon the stem t of the valve 3 I provide a flatseating face 5 in Specification of Letters Patent.

Application filed January 14, 1910.

Patented Oct. 4, 1910.

Serial No. 538,023.

which are the inlet opening 6 and the outlet opening 7 The inlet opening46 communicates with the interior of the stem to admit a cooling liquidthereinto, which cooling liquid may exhaust into the opening 8 in thepipe 9 and find its way through the opening 7. As it is desired tointroduce a liquid from a convenient point distant from the stem andexhaust it to some suitable point distant from the stem, I have providedthe connection, one form of which is shown in Figs. 1, 2 and 3. Thisform may consist of a flat plate 10 having bolt openings 11 and 12. Fromthe face of the plate 10 extends a nipple 15 which is the inlet port andwhich receives supply from a suitable pipe. A nipple 13 registers withthe exhaust port 7 in the stem t, said nipple 13 being connected to apipe 14 which may be of sufficient lengt-h to extend into a drain cup(not shown). The plate 10 is provided with a fiat face 16 between whichand the face 5 of the stem 4 may be placed a gasket or packing piece 17.

18 is a U-bolt which is adapted to fit in a groove 19 in the stem andhave its two arms extend through openings 11 and 12 to receive nuts onits respective threaded ends, whereby by screwing up the nuts 2O theplate 10 may be drawn against the face 5 and a tightly packed jointresult. If it is necessary to remove the connection for any cause allthat will be required is to loosen the nuts 20, slide off the U-bolt andthe connection may be removed. The nipples13 and 15 on the plate shownin Fig. 1 are arranged to receive the ends of flexible pipes, as forexample the construction shown in Fig. t which is the same as that shownin Figs. 1, 2 and 3 except the lower nipple 13a is designed 'for arubber hose which may connect to a fixed drain pipe.

The flat face on the valve stem should preferably be made the sameheight as thepart of the tting which clamps against it so as to providea shoulder which will aid the U-bolt 18 in retaining the connection inthe exact position desired.

What I claim and desire to secure by Letters Patent is:

1. In combination with an exhaust valve having a fiat seating face withliquid openings therein, of a tubular connection communicating with theliquid openings and having a flat seating face corresponding to the atface on the valve, and means for securing these faces together.

2. The combination with a movable part to be water cooled, said parthaving a perforated flat seating face, a perforated plate having a pipeconnecting nipple with which a perforation in the plate communicates,and a U-bolt for securing said plate to said movable part.'

3. The combination with a hollow member having inlet and outlet ports, aflat seated plate having ports coinciding with inlet and outlet ports inthe hollow member and provided with nipples surrounding said secondmentioned ports, a gasket between said plate and said hollow member andmeans for securing said plate to said hollow member.

In testimony whereof, I have hereunto subscribed my name this 12th dayof J anu- 20 ary, 1910.

WILLIAM I). FLINT;

Witnesses B. F. FUNK,

C. W. MGGHEE.

